Quote:
Originally Posted by 97 SL320
Does this car see lots of short trips / engine starts - stops? I've seen lots of Euro engines ( VW for example ) not tolerate this very well.
If the lash adjuster / hydraulic compensator / "lifter " is a hydraulic cylinder with a check valve at the bottom. Oil pressure extends the hyd cylinder to take up clearance and ,when the cam presses on the rocker, the check valve closes allowing the system to go solid.
The post above speaks of different thickness lash caps, this is done to keep the hyd cylinder in mid travel, if the cyl is fully extended, you may get valve noise, If the cyl is fully collapsed, a engine valve may stay open.
Somewhere in the shop manual there will be a measuring procedure.
The other question is , if there was no noise prior, why were the parts changed?
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The car does do a combination of short and long trips. The noise I narrowed down to the passenger side bank towards the fire wall. The noise was there prior to the repairs that were made, and now it is still making the noise from the exact same area as stated even after the repairs. I'm taking the car into the shop tomorrow to get an oil pump installed hoping that may solve the issue. If not then I'm going to change out the engine, The question that I have is if that doesn't work will a 500 engine work in this car or should I stick with a 380 engine?